Re: regression: gpiolib: switch the line state notifier to atomic unexpected impact on performance

[Bartosz Golaszewski]

On Tue, Mar 11, 2025 at 11:01 AM David Jander <david@xxxxxxxxxxx> wrote:
>
> On kernel 6.13, after git revert -n fcc8b637c542 time is back to what it was
> on 6.12.
>

Interestingly: I cannot reproduce it. Obviously gpiofind doesn't exist
in libgpiod v2 but I'm running gpiodetect with and without reverting
these changes and am getting roughly the same results: ~0.050s real
time for 1 up to 4 chips.

Any idea why that could be? Can you reproduce it with libgpiod v2 (I
don't know why that wouldn't be the case but worth double checking).

Bart